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#!/bin/sh
# Copyright (c) 2012 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your feedback to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org
#
# First script for initial ramfs for OpenSLX linux stateless clients
#############################################################################
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/openslx/bin:/openslx/sbin
export LD_LIBRARY_PATH=/usr/lib64
mount -n -t tmpfs -o 'mode=755' run "/run"
# mount the important standard directories
[ ! -f /proc/cpuinfo ] && mount -n -t proc proc /proc
[ ! -d /sys/class ] && mount -n -t sysfs sysfs /sys
echo "/sbin/mdev" > /proc/sys/kernel/hotplug
# read graphic and network adaptor configuration (without proprietary drivers yet)
( hwinfo --gfxcard > /etc/hwinfo ) &
( hwinfo --netcard > /etc/netcard ) &
# read kernel command line for debugging switch
read KCL < /proc/cmdline
export KCL
for opts in ${KCL}; do
case ${opts} in
debug*)
DEBUG=1;;
ip=*)
# process IP info
ipinfo=${opts#ip=};;
nfs=*)
nfs=${opts#nfs=}
nfspath=${nfs#*:}
nfsserver=${nfs%:/*}
;;
esac
done
while ps | grep -v grep | grep -q " hwinfo --gfxcard" ; do usleep 10 ; done
case $(cat /etc/hwinfo) in
*i915*)
modprobe -a i915 2>/dev/null
;;
*intel*|*Intel*)
modprobe -a i810 i830 i915 2>/dev/null
;;
*nvidia*|*NVidia*|*nouveau*)
modprobe -q nouveau 2>/dev/null
;;
*radeon*|*Radeon*)
modprobe -q radeon 2>/dev/null
;;
*mga*|*matrox*|*Matrox*)
modprobe -q mga 2>/dev/null
;;
*VMWARE*)
;;
*)
modprobe -qa r128 savage sis tdfx ttm via viafb
;;
esac
( modprobe -a drm fbcon; mdev -s ) &
# load required network and usb controller drivers, filter out wireless adaptors
while ps | grep -v grep | grep -q " hwinfo --netcard" ; do usleep 10 ; done
nwcardlist="forcedeth|e1000e|e1000|e100|tg3|via-rhine|r8169|pcnet32"
echo "modprobe -qa usbhid hid-bright" >/etc/modprobe.base
grep modprobe /etc/netcard | grep -E "$nwcardlist" \
| sed 's/.* Cmd: "//;s/"//;s/modprobe/modprobe -qb/' \
| sort -u >>/etc/modprobe.base
# virtio hack
if [ $(grep -ic "virtio_pci" /etc/modprobe.base) -ge 1 ]; then
echo "modprobe -q virtio_net" >>/etc/modprobe.base
fi
/bin/sh /etc/modprobe.base; mdev -s
# setup network
nwif="eth0"
# set up loopback networking
[ $DEBUGLEVEL -eq 20 ] && echo "** starting ip config at $(sysup)"
ip link set dev lo up 2>/dev/null
ip addr add 127.0.0.1/8 dev lo 2>/dev/null
ip link set dev $nwif up 2>/dev/null || { echo "No link for $nwif, dropping to shell.."; setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1'; }
# analyze ip information from the kernel command line and put parts
# of it into several variables
if [ -n "$ipinfo" ] ; then
getip () {
local val="$ipinfo:"; i=$(($1 - 1));
while [ $i -gt 0 ] ; do
val=${val#*:} ; i=$(($i - 1));
done;
echo $val|sed "s/:.*//"; }
clientip=$(getip 1)
serverip=$(getip 2)
gateway=$(getip 3)
subnet_mask=$(getip 4)
broadcast_address=$(ipcalc -s -b $clientip $subnet_mask|sed s/.*=//)
[ -z "$broadcast_address" ] && broadcast_address=255.255.255.255
# we might have an idea of the dns server via preboot
dns_srv=$(getip 5)
[ -n "$dns_srv" ] && echo nameserver $dns_srv >/etc/resolv.conf;
echo -e "# ip configuration written by $0 script:\nclientip=$clientip\n\
subnet_mask=$subnet_mask\ngateway=$gateway\nserverip=$serverip\n\
broadcast_address=$broadcast_address" >>/etc/initramfs-setup
# set static ip address
ip addr add $clientip/$(ipcalc -s -p $clientip $subnet_mask|sed s/.*=//) \
broadcast $broadcast_address dev $nwif 2>/dev/null
ip route add default via $gateway 2>/dev/null
else
noipyet="yes"
fi
# load local file systems
modprobe aufs
modprobe squashfs
mkdir -p /dev/shm/union /dev/shm/uniontmp /rorootfs
mount -n -t tmpfs none /dev/shm/uniontmp
if [ -n "$nfs" ] ; then
mount -t nfs -o ro,async,nolock ${nfsserver}:${nfspath} /rorootfs || { echo "Problem mounting NFS-Directory from ${nfsserver}:${nfspath}. Dropping to DEBUG shell."; DEBUG=1; }
else
mount -n /mnt/openslx.sqfs /rorootfs || { echo "Problem mounting Squashfs. Dropping to DEBUG shell."; DEBUG=1; }
fi
mount -n -t aufs -o br:/dev/shm/uniontmp:/rorootfs=ro none /mnt
mkdir -p /mnt/uniontmp /mnt/tmp
mount -n --move /dev/shm/uniontmp /mnt/uniontmp
if [ $DEBUG -ge 1 ]; then
echo "Starting debug shell, CTRL + D will start Stage 3.2."
setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1'
fi
for mnt in proc sys run ; do
umount -n $mnt
done
unset BOOT_IMAGE initrd
# new style of pivoting (switch_root or run-init)
exec /sbin/switch_root -c /dev/console /mnt /usr/lib/systemd/systemd
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